15481136541 has 8 divisors (see below), whose sum is σ = 22229324320. Its totient is φ = 9526853232.

The previous prime is 15481136507. The next prime is 15481136579. The reversal of 15481136541 is 14563118451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15481136541 - 2⁶ = 15481136477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 396952219 = 15481136541 / (1 + 5 + 4 + 8 + 1 + 1 + 3 + 6 + 5 + 4 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15481136541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15481136641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198476071 + ... + 198476148.

It is an arithmetic number, because the mean of its divisors is an integer number (2778665540).

Almost surely, 2^15481136541 is an apocalyptic number.

It is an amenable number.

15481136541 is a deficient number, since it is larger than the sum of its proper divisors (6748187779).

15481136541 is a wasteful number, since it uses less digits than its factorization.

15481136541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396952235.

The product of its digits is 57600, while the sum is 39.

The spelling of 15481136541 in words is "fifteen billion, four hundred eighty-one million, one hundred thirty-six thousand, five hundred forty-one".